JPH05289637A - Image information display device - Google Patents

Abstract

PURPOSE:To provide the image information display device equipped with a concealing function which conceals a partial area in an image with a specific pattern and displays the area according to an operator's instruction as to an image display device which is used for presentation by displaying characters', graphics, etc. CONSTITUTION:This display device is equipped with a 1st display memory 2, an area specifying means 5, a process area storage means 6, a concealing process means 9 equipped with a pattern generation part 7 which generates the concealment pattern in an area and an original image restoration part 8 which displays image data in the 1st display memory 2 by erasing the pattern in the area, a 2nd display memory for storing the concealment pattern, and a display device 4, and, the concealment pattern is previously drawn by the pattern generation part 7 in the area specified in the 2nd display memory 3 to conceal the original image data, and the original image restoration part 8 erases the concealment pattern in response to the operator's instruction to display the image data in the 1st display memory 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image information presenting device for presenting an image input from an image input device such as a scanner or a camera or image information created by a computer,
In particular, the present invention relates to an image information presentation device suitable for presenting image information using a display at conferences and lectures.

[0002]

2. Description of the Related Art With the recent development of computer technology,
In addition to characters, a variety of display elements such as figures and images can be displayed, and image information presentation devices that can express effectively have appeared. Usually, in an image information presentation device, these display elements are stored as two-dimensional bit data in a display frame memory, and the contents can be displayed on the display device by periodically scanning them.

An example in which a display device such as a large display and the above-described image information presentation device are used for a presentation at a conference or a lecture meeting which has been conventionally performed using an overhead projector or the like by utilizing such an expression format. Is beginning to appear. In a presentation using such an image information presentation device, for example, Japanese Patent Laid-Open No. 3-136091.
As described in Japanese Patent Publication, it is devised that a smooth presentation can be executed by creating a scenario that describes a procedure for displaying a prerecorded presentation document and sequentially displaying the presentation document according to the scenario. ..

Further, as described in Japanese Patent Application Laid-Open No. 1-124063, a presentation document to be displayed and a masking pattern for masking the display screen are superimposed and displayed on a display device, and the masking pattern is sequentially changed. By doing so, the device is designed to draw the attention of the viewer. In addition, when trying to attract the attention of the viewer to a partial area on the screen of the displayed presentation document, other parts such as pointing the part with a pointer or overlapping the cursor pattern and displaying It is also possible to use a method of sequentially displaying partial areas that the viewer should pay attention to as the presentation progresses without displaying the entire image.

[0005]

As described above, as a method of attracting the attention of the viewer in the partial area of the screen of the displayed presentation original, the entire image is not displayed from the beginning and the presentation there is a method of sequentially displayed along with the progress, the conventional image information presentation device, it is necessary to create a data indicating whether to display previously which part areas in any order. For example, when the display image is an image drawn by graphics such as characters and figures, data indicating what kind of instruction each drawing command is executed to draw is created in advance and set in the data. It is necessary to perform control so as to execute the specified drawing command when receiving the instruction.

Further, when the display image is bit image data such as a color photograph, the image is divided into partial areas to be displayed at a time and stored in advance, and the instruction for displaying each partial area is determined. It is necessary to perform control to create the data shown and read out and display the image data of the specified partial area when the instruction set in the data is received. As described above, in the conventional image information presentation device, in order to display the partial area of the image at a desired time by the instruction of the operator, complicated preparation is required, and the control at the time of performing the presentation is complicated and easy. is not.

An object of the present invention is to display a partial pattern in a presentation image stored in a display frame memory at the time of giving a presentation using an image information presenting apparatus by initially displaying a specific pattern. By keeping the image data invisible and displaying the original image data of the area according to the operator's instruction, the concealment process for displaying the desired partial area in the image at the desired time can be performed without complicated preparation. However, it is still another object of the present invention to provide an image information presentation device that can be easily executed and can perform an effective display that attracts the attention of a viewer to a desired portion in an image.

[0008]

An image information presenting device according to the present invention is an image information presenting device for displaying an image input from an image input device or an image data storage device on a display screen. A first display memory to be stored, an area designating means for designating an arbitrary area within an image stored on the first display memory, and a processing area storage for storing the area designated by the area designating means. A concealment processing means including means, a pattern generating section for forming a specific pattern in a designated area, and an original image restoring section for erasing the pattern in the area and displaying the image data of the first display memory; A second display memory that stores a specific pattern formed by the generation unit as a concealed pattern and the data stored in the two display memories are combined and displayed. A display device and a central processing unit for controlling the entire system are provided, and a desired partial region in the image is designated in advance by the processing region designation means, and when the image is presented, it is designated first. The concealment pattern is drawn in the second display memory of the area and the original image data stored in the first display memory is displayed so as not to be seen, and the original image restoration unit is received when the operator's instruction is received. The original image data in the first display memory is displayed by erasing the concealment pattern.

[0009]

In the image information presenting apparatus according to the present invention, the partial area to be hidden at first in the image used for the presentation and to be displayed according to the operator's instruction is set and stored in advance. When the image is used for a presentation, the concealment pattern is initially drawn in the set area by the pattern generation unit, and the original image data is not displayed. Then, when a concealment cancellation instruction is received from the operator, the original image restoration unit erases the concealed pattern in the area and displays the original image data. As a result, concealment processing for displaying a desired partial area in an image at a desired time can be easily performed without complicated preparation by simply specifying the area in advance, and the desired portion in the image can be displayed. It enables effective display that attracts the attention of the viewer.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram of a first embodiment of an image information presenting apparatus according to the present invention. In the figure, 1 is an image input means for inputting image data to be displayed from an image input device such as a scanner or a storage device such as an optical disk device,
Reference numeral 2 is a first display memory that stores image data input from the image input apparatus 1, and 3 is a second display memory that stores a concealment pattern (the two display memories are collectively referred to as “image display memory”). ) 4 is a display device for combining and displaying the image data stored in the first display memory and the second display memory, and 5 is a desired display device in the image data stored in the first display memory 2. A processing area designating means for designating an area, and a processing area storage means 6 for storing the designated area.

Further, 9 is a concealment processing means for executing concealment processing, which erases the concealment pattern in the designated area according to an instruction from the pattern generator 7 for drawing the concealed pattern in the designated area of the second display memory. By doing so, it is configured with the original image restoration unit 8 that displays the original image stored in the first display memory. Reference numeral 10 is a central processing unit for controlling the entire system, and 11 is a system bus for exchanging data and control commands from the central processing unit.

FIG. 2 is a flow chart for explaining the operation of this embodiment. The image information presenting apparatus according to the present invention executes an authoring operation for preparing concealment information as a preparation for a presentation and a presentation operation for executing a presentation using an image and concealment information.

First, the authoring operation will be described with reference to FIG. First, in step 20, the image data to be displayed is read from the image input means 1 by the control command of the central processing unit 10 and stored in the first display memory 2. The second display memory is cleared with a transparent color. The transparent color is a specific value used when the data in the two display memories are combined and displayed. The method of composite display will be described later.

Next, at step 21, the processing area designating means 5 designates an arbitrary area within the image stored in the image display memory. The area is designated by the operator using a pointing device such as a mouse. That is,
The central processing unit operates the pointing device so that the cursor displayed on the display device in conjunction with the movement of the pointing device is displayed at a desired position on the image display memory. When the cursor is displayed at the desired position, the mouse button is clicked to specify the position, and the coordinates of the position are notified to the central processing unit. It is possible to specify an arbitrary area by sequentially specifying points on the contour line of the desired area. The designated area information is sequentially stored by the processing area storage means 6 (step 22). For example, when rectangular areas 31 to 35 are designated in the display image as shown by 30 in FIG.
As shown at 36 in (b), the coordinates of the upper left corner and the lower right corner of each rectangular area are stored as concealment information of the image.

Next, the presentation operation will be described with reference to FIG. First, in step 23, the concealment information of the image used for the presentation is read, and the concealment pattern is drawn in the second display memory 3 in the area described in the concealment information by the pattern generation unit 7 of the concealment processing means.

A method of synthesizing and displaying the data stored in the two display memories will be described with reference to FIG. The two display memories are memories capable of expressing positions in the memories by a two-dimensional array having the same size. The display device synthesizes and displays the data stored in the first display memory and the second display memory as follows. That is, the data stored in the position (a, b) of the first display memory is changed to D
1. If the data stored in the position (a, b) of the second display memory is D2, and if D2 has a certain value (hereinafter referred to as “transparent color”), the position is The value D1 stored in the first display memory is displayed, and when D2 is not a transparent color, the value D2 stored in the second display memory is displayed at that position.

Therefore, as shown in FIG. 6, the image used for the presentation is stored in the first display memory 2.
When the conceal pattern is drawn in the second display memory 3, the data stored in the second display memory is displayed on the display device 4 in an overlapping manner on the data stored in the first display memory. It In step 23 of FIG. 2, first, the second display memory 3 is transparently cleared, and then, as shown in FIG. 6, a concealment pattern is drawn in the area described in the concealment information.

Next, in step 24, the image used for the presentation is read out and stored in the first display memory. At this time, it is displayed on the display device as 37 in FIG. Next, in step 25, when the operator designates an arbitrary position inside the region for releasing the concealment with a pointing device or the like, the central processing unit 10 selects one of the regions stored in the processing region storage means 6. A region including the position inside is extracted, and in step 26, the following concealing canceling process is executed on the region. That is, the central processing unit 10 notifies the original image restoration unit of the region designated by the operator, and the original image restoration unit draws the transparent data in the notified region of the second display memory. This gives 38 in FIG.
As described above, in the area designated by the operator, the data in the first display memory, that is, the original image data is displayed.

In the above embodiment, the conceal pattern for hiding the designated area is a preset pattern, but a plurality of conceal patterns are stored in advance,
Select which conceal pattern to use during authoring, store it as conceal information along with the concealment area information, and read the conceal pattern from the conceal information first at the time of presentation.
The designated area may be concealed by the pattern.

In the second embodiment described below, the partial area of the image used for the presentation can be set as the concealed pattern. FIG. 7 is a block diagram of a second embodiment of the image information presentation device according to the present invention. In the figure, 12 is a pattern setting means for setting a concealed pattern.

FIG. 9 is a flow chart showing the authoring operation according to this embodiment. First, in step 20, the image data to be displayed is read from the image input means 1 and stored in the first display memory 2. Then, in step 70, the operator designates a partial area of the image displayed in the image display memory as shown in 80 of FIG. The pattern setting means stores the image data of the designated area as concealment pattern information of the image. Then, in step 21, an arbitrary area in the image stored in the first display memory is designated, and area information of the area is sequentially stored in 22.

FIG. 8 shows the concealment information created in this embodiment. In the presentation operation in this embodiment,
When a conceal pattern is first drawn in the second display memory, the conceal pattern stored in the conceal information is read and the pattern is drawn. For example, if the conceal pattern is set as shown in FIG. 8, the concealed area is displayed inconspicuously as shown in FIG. 9 when the presentation is executed. As described above, according to this embodiment, it is possible to use the conceal pattern suitable for the image to be displayed.

In the above embodiment, it is difficult to know which area is concealed when the presentation is executed. Therefore, when the conceal pattern is drawn in the second display memory, the contour line of the area in which the conceal pattern is drawn is drawn with a value that is different from the conceal pattern and that is not a transparent color. As a result, when the first and second display memories are combined and displayed, the contour line of the concealed area is clearly displayed, so that where the operator specifies the area where the concealment is to be released, the concealed area is concealed. It is easy to see if it is a region.

In the description of the first and second embodiments, only the rectangular area is used as the concealed area as shown in 36 and FIG. 8 of FIG. 3B, but the present invention is not limited to this. As described above, any closed area can be set as the concealed area.

[0026]

As described above, according to the present invention, when a presentation is performed using the image information presenting apparatus and the display, the image information presenting apparatus has two display memories,
By providing a display device that synthesizes and displays the data in the two display memories and a concealment processing means, a desired partial area in a display image can be created by simply designating an area to be concealed. Can be displayed at times. As a result, the concealment process of sequentially displaying the partial regions in the image according to the progress of the presentation without completely displaying the image used for the presentation from the beginning can be realized without complicated preparation, You can give an effective presentation.

Further, by making it possible to set a partial area of the image used for the presentation as a concealed pattern, a concealed pattern suitable for the image can be used.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a first embodiment in an image information presentation device according to the present invention.

FIG. 2 is a flowchart showing an operation of the first embodiment, (a) is a flowchart showing an authoring operation, and (b) is a flowchart showing a presentation operation.

FIG. 3A is a diagram showing a display image of image information and a designated area in the image in the first embodiment,
(B) is a figure which shows the concealment information of the designated area | region.

FIG. 4 is a diagram showing a concealed display image in the first embodiment.

FIG. 5 is a diagram showing a display image in which the concealment of one area is released in the first embodiment.

FIG. 6 is an explanatory diagram showing how data in the first display memory and data in the second display memory are combined.

FIG. 7 is a block configuration diagram of a second embodiment of the image information presentation device according to the present invention.

FIG. 8A is a diagram showing concealment information of an area designated in the second embodiment, and FIG. 8B is a diagram showing concealment pattern information in the second embodiment.

FIG. 9 is a flowchart illustrating an authoring operation according to this embodiment.

FIG. 10 is a diagram showing a display image during an authoring operation of this embodiment.

FIG. 11A is a diagram showing a concealed display image in the second embodiment, and FIG. 11B is a diagram showing a concealed display image in one region in the second embodiment. Is.

[Explanation of symbols]

 1 Image Input Means 2 First Display Memory 3 Second Display Memory 4 Display Device 5 Area Designation Means 6 Processing Area Storage Means 7 Pattern Generation Unit 8 Original Image Restoration Unit 9 Conceal Processing Means 10 Central Processing Unit 11 System Bus 12 Patterns Setting means

Claims (2)

[Claims] 1. An image information presentation device for displaying an image input from an image input device or an image data storage device on a display screen, the first display memory storing image information, and the first display memory. Area designating means for designating an arbitrary area in the image stored above, processing area storage means for storing the area designated by the area designating means, and forming a specific pattern in the designated area. Conceal processing means including a pattern generating section and an original image restoring section for erasing the pattern in the area and displaying the image data of the first display memory, and the specific pattern formed by the pattern generating section is stored as a concealed pattern. Second display memory, a display device for combining and displaying the data stored in the two display memories, and a central processing unit for controlling the entire system When the image is displayed, the concealment pattern is drawn in advance by the pattern generating unit in the area designated by the area designating means on the second display memory so that the original image data is not displayed, and the operation is performed. The image information presenting apparatus is characterized in that the original image restoration unit erases the concealment pattern in the area when the user's instruction is received so that the image data in the first display memory is displayed. 2. The image information presenting apparatus further comprises a concealment pattern setting unit for setting a partial area of the display screen as a concealment pattern.
Image information presentation device described in